High Quality Content by WIKIPEDIA articles! Grinnell Glacier is located in the heart of Glacier National Park (U.S.) in the U.S. state of Montana. The glacier is named for George Bird Grinnell, an early American conservationist and explorer, who was also a strong advocate of ensuring the creation of Glacier National Park. The glacier is in the Lewis Range and rests on the north flank of Mount Gould at an altitude averaging 7,000 feet (2,100 m), in the Many Glacier region of the park. The glacier has been one of the most photographed glaciers in the park and many of these photographs date back to the mid 19th century. When compared with images taken over subsequent years, the glacier has obviously retreated substantially. In 1850, at the end of what has been referred to as the Little Ice Age, Grinnell Glacier measured 2.88 square kilometres (710 acres), including the area of The Salamander, an ice apron or shelf glacier that used to be attached to Grinnell, but is now separate.